Green environmentally-friendly broken stone active powder concrete
An active powder, green and environmentally friendly technology, applied in the field of concrete, can solve the problems of restricting the use and development of RPC materials, high viscosity coefficient of concrete, and difficulty in forming self-compacting, etc., to increase self-compacting performance, reduce excessive heat of hydration, The effect of reducing usage
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Embodiment 1
[0042] Prepare concrete raw materials according to the following mass ratios:
[0043] 515 parts of low-alkali Portland cement or ordinary Portland cement with an average particle size of 30-60 μm;
[0044] Average particle size 0.18μm, SiO 2 128 parts of silica fume with content ≥85%;
[0045] 115 parts of Class I fly ash with an average particle size of 10-20 μm (calcium oxide content ≤ 10%);
[0046] 115 parts of mineral powder above S95 grade with an average particle size of 10-30 μm;
[0047] 560 parts of quartz sand with a particle size of 0.16~1.63mm;
[0048] 840 parts of stones with a particle size of 5-14mm (crushing index less than 10, needle flake content less than 5%, mud content less than 0.5%);
[0049] 17 parts of composite high-efficiency water-reducing agent with a water-reducing rate greater than 30% (defoamer: air-entraining agent: synergist: water-reducing agent is 0.02:0.005:0.25:1);
[0050] 9 parts of rust inhibitor (triethanolamine borate and orga...
Embodiment 2
[0073] Prepare concrete raw materials according to the following proportions:
[0074] 485 parts of low-alkali Portland cement or ordinary Portland cement with an average particle size of 30-60 μm;
[0075] Average particle size 0.18μm, SiO 2 105 parts of silica fume with content ≥85%;
[0076] 130 parts of Class I fly ash with an average particle size of 10-20 μm (calcium oxide content ≤ 10%);
[0077] 130 parts of mineral powder above S95 grade with an average particle size of 10-30 μm;
[0078] 510 parts of quartz sand with a particle size of 0.16~1.63mm;
[0079] 880 pieces of stones with a particle size of 5-14mm (crushing index less than 10, needle flake content less than 5%, mud content less than 0.5%);
[0080] 15 parts of composite high-efficiency water-reducing agent with a water-reducing rate greater than 30% (defoamer: air-entraining agent: synergist: water-reducing agent is 0.02:0.005:0.25:1)
[0081] 7 parts of rust inhibitor (triethanolamine borate and orga...
Embodiment 3
[0098] Prepare concrete raw materials according to the following proportions:
[0099] 580 parts of low-alkali Portland cement or ordinary Portland cement with an average particle size of 30-60 μm;
[0100] Average particle size 0.18μm, SiO 2 145 parts of silica fume with content ≥85%;
[0101] 105 parts of Class I fly ash with an average particle size of 10-20 μm (calcium oxide content ≤ 10%);
[0102] 105 parts of mineral powder above S95 grade with an average particle size of 10-30 μm;
[0103] 590 parts of quartz sand with a particle size of 0.16~1.63mm;
[0104] 795 pieces of stones with a particle size of 5-14mm (crushing index less than 10, needle flake content less than 5%, mud content less than 0.5%);
[0105] 18 parts of composite high-efficiency water reducer with water reducing rate greater than 30% (defoamer: air-entraining agent: synergist: water reducer is 0.02:0.005:0.25:1);
[0106] 12 parts of rust inhibitor (triethanolamine borate and organic silicone c...
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